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Ultrasonic scalers are used to remove calculus rapidly from the tooth surface. The scaling tip vibrates in the ultrasonicrange of 20-45 kHz (i.e. 20,000 to 45,000 times per second), with an optimum frequency between 18 kHz and 32kHz. Most of the scaling power is available at the tip, which is cooled with a jet of water. There are three basic types - magnetostrictive, piezo-electric and Odontoson™. The scaling tip vibrates and follows a pattern depending on power rating and type - elliptical, curved linear or figure of 8. The water is energised as it passes over the tip to provide cavitation, which results in a scouring action. Because of the heat generated at the tip, it is essential to keep the tip moving over the teeth.
Eloise Upton
Wiki User
∙ 10y agoapplication of ultrasound
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Significant contributions to the fields of vibration and sound musical instruments ultrasonics diffraction optics and magnetism?
Chandrasekhra Venkata Raman. He was also the first Asian to be awarded the Nobel Prize.
What is an instrument that measures volume?
All depends on what you are trying to measure. Could be as simple as a tape measure/ruler where you measure 3 along 3 axes (sides) for a simple shape to a sophisticaled, calibrated laser surveying. Which ever way, it is achieved in the same way(mostly), which is measuring lengths of the object (along certain axes(as in the plural of axis, wiki cartesian coordinates if you are interested to give you some insight). Afte the lengths have been found a volume can be found. For complicated shape this has to be broken up in to smaller achievable pieces, (even most of the very sophisicated technology does this) Alternatively if if it is to find the defining equation of the planes, it is possible to derive the volume of the object using calculus. another option is if you are measuring a fluid you can drop something of known volume and measure the displace,ment of the fluid and that would allow you to calculate the volume another option is ultrasonics for instance ultrasonic electromagnetic readiation is basically bounced through a material (for example a metal) and you measure the time it takes to propogate through the material,and if you know the density of the material and the length that is basically enough to be able to calculate volume also. either way it really depends on what you are trying to measure.
What is principle of sonar?
Sonar (sound navigation and ranging) is the application of a sound wave propagated through some medium (like water) and the reception of reflected energy (the echo) to discover what is there.
When was Sonobond Ultrasonics created?
Sonobond Ultrasonics was created in 1960.
What type of science is ultrasonics?
Ultrasonics is the science of sound. Ultrasonics are usually used to detect items and measure distance. It is often used in the vetrinary and human medical field.
What has the author Benson Carlin written?
Benson Carlin has written: 'Ultrasonics' -- subject(s): Ultrasonics
Definition for ultrasonics?
Sounds which have frequency greater than 20,000Hz are inaudible to human ears are called ultrasonics.
What has the author Satya Prakash written?
Satya Prakash has written: 'Ultrasonics and colloids' -- subject(s): Colloids, Ultrasonics
Which rays are more dangerous infrasonics or ultrasonics?
Ultra
What has the author Gillian Sales written?
Gillian Sales has written: 'Ultrasonic communication by animals' -- subject(s): Animal behavior, Animal communication, Animal sounds, Ultrasonics, Ultrasonics in biology
What is the value of the velocity of ultrasonics in kerosene?
1640 + - 170 m/s
What has the author S N Hassani written?
S. N. Hassani has written: 'Real time ophthalmic ultrasonography' -- subject(s): Diagnosis, Diagnostic use, Eye, Eye Diseases, Ultrasonic imaging, Ultrasonics, Ultrasonics in ophthalmology 'Ultrasonography of the abdomen' -- subject(s): Abdomen, Diagnosis, Diagnostic use, Diseases, Ultrasonic imaging, Ultrasonics
What are the three applications of Nondestructive Testing - NDT - of ultrasonics?
Three applications for Ultrasonics in the NDT field are checking for the thinning of metals, checking for cracks and fractures on the backside of a metal surface as well as looking for defects in honeycomb structures.
What has the author V A Nosov written?
V. A. Nosov has written: 'Ultrasonics in the chemical industry'
What has the author H John Shammas written?
H. John Shammas has written: 'Atlas of ophthalmic ultrasonography and biometry' -- subject(s): Atlases, Biometry, Diagnosis, Diagnostic use, Eye Diseases, Orbital Diseases, Ultrasonics, Ultrasonics in ophthalmology
